Scenes from Sunday at CES 2014 (pictures)

The show doesn't officially open for two more days, but there's already plenty to see here in Las Vegas. Take a peek at the most interesting tech we saw today.

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BeeWi robots

LAS VEGAS -- International CES 2014, as it's officially called, doesn't actually open for two more days, but there's already plenty to see here in Las Vegas. Take a peek through this slideshow to get a summary of the most interesting tech we saw today.

The biggest event of the day was CES Unveiled, where vendors give press an early look at some of the things they'll be showing off at CES. The first photos in this collection are from that event.

We've seen playful BeeWi robots before and they made another appearance at CES this year. Here are some BeeWi bots that battle each other, controlled by smartphone, at CES Unveiled on Sunday night.

For a summary of the highlights of the day, see our related story: What mattered on Sunday at CES 2014. We'll publish summaries in words and pictures each day of the show, so come back for more all week.

BeeWi light bulb

Chevrolet Corvette

Chevrolet parked its new 2015 Corvette on the floor at CES Unveiled. We took the car -- and its integrated 720p video recorder and telemetry logger -- for a drive on the track before the show kicked off.

CES Unveiled

Lenovo Yoga 2

Lenovo is revisiting its Yoga hybrid laptop, introducing the Yoga 2, which will be available in 11-inch and 13-inch models. The small version starts at $529, but to get the lower price, you do give up some power compared to the Pro predecessor. You can read more of the details about the Lenovo Yoga 2 here.

Cobra Bluetooth speakers

Cobra's pair of rugged Bluetooth speakers include the AirWave Mini (left) and the Box. The Mini sports a splash-resistant exterior, but the Box goes one further -- it's able to survive a 30-minute soak in water. Read more about these two Cobra speakers here.